Instant heating module testing device

Abstract

The utility model discloses an instant heating module testing device, comprising a gas path three-way valve (13), an input port of which is communicated with a gas source (11), a first output port of which is communicated with a first input port of a water-gas three-way valve (16), a communication path is provided with a gas pressure detection device (15), and a second output port and a water source (111) are converged to a second input port of the water-gas three-way valve (16); an output port of the water-gas three-way valve (16) is communicated with a water inlet (31) of the tested instant heating module, and a first temperature sensor (17) is arranged in a communication path; the water outlet valve (18), the second temperature sensor (19) and the flow meter (110) are communicated to a water outlet (32) of the tested instant heating module in a series connection mode; according to the utility model, water vapor can be considered, and gas can be introduced to blow the tested instant heating module after a water passing detection test is finished, so that residual water is blown out.

Description

Technical Field

[0001] The utility model relates to the field of product testing, and particularly to a testing device for an instant heating module. Background Art

[0002] At present, for an instant heating module (such as an instant heating module in a sweeping robot), generally there is only a function of detecting the flow rate by passing water. If only the water passing detection is carried out, there may be a situation where a small amount of leakage of the product to be tested cannot be detected, and in addition, there is water residue in the product after testing; or there is only a function of detecting air tightness. If only the air tightness is detected, when there is a blockage in the pipeline but not completely blocked, it cannot be detected. Summary of the Utility Model

[0003] The technical problem to be solved by the utility model is to provide a testing device for an instant heating module, which can realize the functions of detecting the flow rate by passing water and detecting air tightness, aiming at the above defects of the prior art.

[0004] The technical solution adopted by the utility model to solve its technical problems is to construct a testing device for an instant heating module, which includes an air path three-way valve, a pressure detection device, a water and air three-way valve, a first temperature sensor, a second temperature sensor, a flow meter, and a water outlet valve; the input port of the air path three-way valve is communicated with a gas source, the first output port of the air path three-way valve is communicated with the first input port of the water and air three-way valve, and the pressure detection device is arranged in the communication path therebetween. The second output port of the air path three-way valve and the water source converge to the second input port of the water and air three-way valve. The output port of the water and air three-way valve is communicated with the water inlet of the instant heating module to be tested, and the first temperature sensor is arranged in the communication path therebetween. The water outlet valve, the second temperature sensor, and the flow meter are connected in series to the water outlet of the instant heating module to be tested.

[0005] Further, in the testing device for an instant heating module of the utility model, a precision pressure regulating valve is further included, and the precision pressure regulating valve is arranged in the communication path between the first output port of the air path three-way valve and the first input port of the water and air three-way valve.

[0006] Further, in the testing device for an instant heating module of the utility model, a pneumatic three-piece unit is further included, and the pneumatic three-piece unit is arranged in the communication path between the gas source and the input port of the air path three-way valve.

[0007] Further, in the testing device for an instant heating module of the utility model, a relay water tank is further included, and the relay water tank is arranged in the communication path between the water source and the second input port of the water and air three-way valve.

[0008] The water source is communicated with the first water inlet of the relay water tank. The second water inlet of the relay water tank is communicated with the water outlet of the instant heating module to be measured. The water outlet valve, the second temperature sensor, and the flow meter are arranged in the communication path between the water outlet of the instant heating module to be measured and the second water inlet of the relay water tank. The water outlet of the relay water tank is communicated with the second input port of the water-gas three-way valve.

[0009] Further, in the instant heating module testing device of the present invention, a water source supply valve, a filter, and a water pump are further included;

[0010] The water source supply valve is arranged in the communication path between the water source and the first water inlet of the relay water tank. The filter and the water pump are arranged in the communication path between the water outlet of the relay water tank and the second input port of the water-gas three-way valve.

[0011] Further, in the instant heating module testing device of the present invention, water outlets and water inlets are arranged on both sides of the instant heating module. The testing device further includes a water outlet docking port and a water inlet docking port.

[0012] The output port of the water-gas three-way valve is communicated with the water inlet docking port. The first temperature sensor is arranged between the water inlet docking port and the output port of the water-gas three-way valve. The water inlet docking port is docked with the water inlet of the instant heating module to be measured. The water outlet docking port is communicated with the second water inlet of the relay water tank. The water outlet valve, the second temperature sensor, and the flow meter are arranged between the water outlet docking port and the second water inlet of the relay water tank. The water outlet docking port is docked with the water outlet of the instant heating module to be measured.

[0013] Further, in the instant heating module testing device of the present invention, a power interface is arranged at the top of the instant heating module.

[0014] The testing device further includes a test bench, a power supply docking port connected to the power supply and used for docking with the power interface of the instant heating module to be measured, a product testing position arranged on the test bench for placing the instant heating module to be measured, and a vertically liftable pressing mechanism. The power supply docking port is located above the product testing position, and the power supply docking port is arranged on the pressing mechanism. The pressing mechanism is used to drive the power supply docking port to press down and insert into the power interface of the instant heating module to be measured.

[0015] Further, in the instant - heating module testing device of the present utility model, the testing device further includes a water - outlet pushing mechanism and a water - inlet pushing mechanism distributed on both sides of the product testing position. Both the water - outlet pushing mechanism and the water - inlet pushing mechanism can translate in the horizontal plane. The water - outlet pushing mechanism is equipped with the water - outlet docking interface and can push the water - outlet docking interface to dock with the water outlet of the instant - heating module to be tested. The water - inlet pushing mechanism is equipped with the water - inlet docking interface and can push the water - inlet docking interface to dock with the water inlet of the instant - heating module to be tested.

[0016] Further, in the instant - heating module testing device of the present utility model, the pressing mechanism includes a plurality of guiding columns, a pressing plate, a quick - clamp, and a self - resetting spring. The pressing plate is located above the product testing position. The power supply docking interface is installed on the pressing plate. A plurality of the guiding columns are vertically fixed on the testing platform and distributed around the product testing position. The guiding columns vertically pass through the pressing plate. The pressing plate and the guiding columns are cooperated through linear bearings to move up and down along the guiding columns. The quick - clamp is fixed on the pressing plate and is used for a user to apply pressure to press down the pressing plate; the self - resetting spring is sleeved outside the guiding columns and is located between the pressing plate and the testing platform, and is used for resetting the pressing plate.

[0017] Further, in the instant - heating module testing device of the present utility model, it further includes a pressing - down detection sensor and a product detection sensor. The product detection sensor is arranged on the testing platform and below the product testing position, and is used for detecting whether the instant - heating module to be tested is placed in the product testing position; the pressing - down detection sensor is located in the pressing - down path of the pressing mechanism and is used for detecting whether the instant - heating module to be tested is pressed down in place.

[0018] The instant - heating module testing device of the present utility model has the following beneficial effects: The present utility model can take into account both air and water. It can control the introduction of a gas source or a water source through an air - path tee, a water - and - air tee valve, and a water - outlet valve to conduct air - tightness detection or water - passing detection. An air - pressure detection device is used to observe the air - tightness. The first temperature sensor, the second temperature sensor, and the flowmeter are used to feedback the water - passing detection result. After the water - passing detection test is completed, the air - path tee and the water - and - air tee valve can be used to introduce gas to blow the instant - heating module to be tested, so as to blow out the residual water. Description of the Drawings

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present utility model or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the drawings in the following description are only the embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained according to the provided drawings:

[0020] Figure 1 This is the schematic diagram of the instant - heating module testing device of the present utility model;

[0021] Figure 2 This is the structural schematic diagram of the instant - heating module testing device of the present utility model;

[0022] Figure 3 This is the partial structural schematic diagram of the instant - heating module testing device of the present utility model. Detailed implementation manners

[0023] To facilitate the understanding of the present utility model, the present utility model will be described more comprehensively below with reference to the relevant drawings. The typical embodiments of the present utility model are shown in the drawings. However, the present utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, these embodiments are provided to make the disclosure of the present utility model more thorough and comprehensive. It should be understood that the embodiments of the present utility model and the specific features in the embodiments are detailed descriptions of the technical solutions of the present application, rather than limitations on the technical solutions of the present application. Without conflict, the technical features in the embodiments of the present utility model and the embodiments can be combined with each other.

[0024] Reference Figure 1 , the product 3 to be tested in the figure is the instant - heating module to be tested. The instant - heating module testing device of this embodiment includes: a gas source 11, a water source 111, a gas - path three - way valve 13 for hitting the first output port (i.e., following the A branch in the figure) and then the second input port (i.e., following the B1 branch in the figure) during the airtightness test, a pressure detection device 15, a water - gas three - way valve 16 for hitting the first input port (i.e., following the A branch in the figure) during the airtightness test and hitting the second input port (i.e., following the B branch in the figure) during the water - passing test, a first temperature sensor 17, a second temperature sensor 19, a flowmeter 110, and a water outlet valve 18 that is closed during the airtightness test and opened during the water - passing test.

[0025] Among them, the input port of the gas - path three - way valve 13 is communicated with the gas source 11 through a pipeline. Preferably, the device of this embodiment further includes a pneumatic three - piece unit 12, and the pneumatic three - piece unit 12 is arranged in the communication pipeline between the gas source 11 and the input port of the gas - path three - way valve 13.

[0026] Among them, the first output port of the pneumatic three-way valve 13 is connected to the first input port of the water-air three-way valve 16 through a pipeline, and the air pressure detection device 15 is arranged in the connection path. Preferably, the water-air three-way valve 16 is a direct-acting solenoid valve. The device of this embodiment further includes a precision pressure regulating valve 14, and the precision pressure regulating valve 14 is arranged in the connecting pipeline between the first output port of the pneumatic three-way valve 13 and the first input port of the water-air three-way valve 16. More specifically, the precision pressure regulating valve 14 is located upstream of the air pressure detection device 15.

[0027] Among them, the second output port of the pneumatic three-way valve 13 and the water source 111 converge to the second input port of the water-air three-way valve 16, that is, the B1 and B2 branches in the figure converge to B. Specifically, this embodiment further includes a relay water tank 113 arranged in the connection path between the water source 111 and the second input port of the water-air three-way valve 16. The water source 111 is connected to the first water inlet of the relay water tank 113 through a pipeline, and the water outlet of the relay water tank 113 is connected to the second input port of the water-air three-way valve 16. Preferably, it further includes a water source supply valve 112, a filter 114, and a water pump 115. The water source supply valve 112 is arranged in the connecting pipeline between the water source 111 and the first water inlet of the relay water tank 113, and the filter 114 and the water pump 115 are sequentially arranged in the connecting pipeline between the water outlet of the relay water tank 113 and the second input port of the water-air three-way valve 16.

[0028] Preferably, the relay water tank 113 is also equipped with a low water level sensor and a high water level sensor. When the water pump 115 is turned on, if both the two high and low water level sensors on the relay water tank 113 (the low water level sensor is located at the position of 1.5 times the test water consumption) do not work, the control board controls the water pump 115 to pump water normally; if the low water level sensor works, the water source supply valve 112 is first opened to add water to the relay water tank 113, and after the high water level sensor works, the water source supply valve 112 is closed. Among them, the output port of the water-air three-way valve 16 is connected to the water inlet 31 of the to-be-tested instant heating module through a pipeline, and the first temperature sensor 17 is arranged in the connection path.

[0029] Among them, the water outlet valve 18, the second temperature sensor 19, and the flow meter 110 are connected to the water outlet 32 of the to-be-tested instant heating module in series. Specifically, the second water inlet of the relay water tank 113 is connected to the water outlet 32 of the to-be-tested instant heating module, and the water outlet valve 18, the second temperature sensor 19, and the flow meter 110 are sequentially arranged in the connection path between the water outlet 32 of the to-be-tested instant heating module and the second water inlet of the relay water tank 113.

[0030] Figure 1Only the schematic diagrams of the gas circuit and the water circuit are shown. In theory, it can be connected in the manner of Figure 1 each time a test is conducted. However, to simplify the operation and minimize manual operations, such as Figure 2 , in this embodiment, the entire device is also designed into an L-shaped test chassis, which includes a horizontal test bench and a vertical operation board. A display screen connected to the control board, test result indicator lights (such as a success indicator light and a failure indicator light), etc. are provided on the vertical operation board.

[0031] Refer to Figure 2 , Figure 1 Most of the structures in Figure 3 are arranged inside the chassis, such as the relay water tank 113, the water pump 115, etc.,

[0032] Refer to Figure 2-3 , a product test position 27 for placing the instant heating module to be tested is arranged on the horizontal test bench. Specifically, the product test position 27 is a positioning plate horizontally fixed on the top of the horizontal test bench. The positioning method is not limited. For example, it can be groove positioning, and the instant heating module to be tested is positioned and placed in the positioning groove of the positioning plate. Since the outer shapes of different instant heating modules are different, specific positioning structures matching specific products can be designed on the positioning plate.

[0033] Refer to Figure 1 , since the instant heating module to be tested in this embodiment is the instant heating module in a sweeping robot, it includes four interfaces: a water inlet 31, a water outlet 32, a power interface, and a communication interface. Therefore, the instant heating module test device in this embodiment needs to be connected to these four interfaces of the product. Refer to Figure 2 , 3 , the chassis in this embodiment provides a water outlet docking interface 22 for docking with the water outlet 32 of the instant heating module to be tested, a water inlet docking interface 21 for docking with the water inlet 31 of the instant heating module to be tested, and a power docking interface (the power docking interface specifically includes a power positive test pin 29 and a power negative test pin 28) connected to a power supply (the power supply in this embodiment is an AC programmable power supply) and used for docking with the power interface of the instant heating module to be tested. However, the communication interface of the product is directly connected to the control board through a cable. Of course, in other embodiments, an interface can also be designed to dock with the communication interface. In addition, it can be understood that the types and positions of the interfaces of different instant heating modules may be different. For example, some power and communication are one interface.

[0034] Specifically, in combination with Figure 1-3, the output port of the water-gas three-way valve 16 is communicated with the water inlet docking port 21, the first temperature sensor 17 is arranged between the water inlet docking port 21 and the output port of the water-gas three-way valve 16, and the water inlet docking port 21 is docked with the water inlet 31 of the to-be-tested instant heating module. The water outlet docking port 22 is docked with the water outlet 32 of the to-be-tested instant heating module. The water outlet valve 18, the second temperature sensor 19, and the flow meter 110 are arranged between the water outlet docking port 22 and the second water inlet of the relay water tank 113. The water inlet docking port 21 is a pipeline connecting piece, with one end sleeved on the pipeline and the other end sleeved on the water inlet 31 of the to-be-tested instant heating module; similarly, the water outlet docking port 22 is also a pipeline connecting piece, with one end sleeved on the pipeline and the other end sleeved on the water outlet 32 of the to-be-tested instant heating module.

[0035] In this embodiment, the water outlet 32 and the water inlet 31 are arranged on adjacent side surfaces of the instant heating module. Therefore, the testing device further includes a water outlet pushing mechanism 26 and a water inlet pushing mechanism 25 distributed on both sides of the product testing position 27. The water outlet pushing mechanism 26 and the water inlet pushing mechanism 25 can both translate in the horizontal plane. The water outlet docking port 22 is installed on the water outlet pushing mechanism 26 and can push the water outlet docking port 22 to dock with the water outlet 32 of the to-be-tested instant heating module. The water inlet docking port 21 is installed on the water inlet pushing mechanism 25 and can push the water inlet docking port 21 to dock with the water inlet 31 of the to-be-tested instant heating module. In this embodiment, the water outlet pushing mechanism 26 and the water inlet pushing mechanism 25 are specifically cylinders, which are arranged under the horizontal testing table. In order to fix the water inlet docking port 21 and the water outlet docking port 22, a water inlet positioning block 23 and a water outlet positioning block 24 are further provided. The water inlet positioning block 23 and the water outlet positioning block 24 are both inverted T-shaped plate-like, including a horizontal part and a vertical part connected above the horizontal part. The horizontal testing table is provided with two upper and lower through windows corresponding to the water inlet positioning block 23 and the water outlet positioning block 24. The horizontal parts are all located under the testing table, and the vertical parts pass through the corresponding windows. The telescopic end of the water inlet pushing mechanism 25 is connected to the horizontal part of the water inlet positioning block 23, and the water inlet docking port 21 is inserted and fixed in the vertical part of the water inlet positioning block 23. The telescopic end of the water outlet pushing mechanism 26 is connected to the horizontal part of the water outlet positioning block 24, and the water outlet docking port 22 is inserted and fixed in the vertical part of the water outlet positioning block 24. The size and shape of the window are designed according to the size and moving path of the vertical part, ensuring that the vertical parts of the water inlet positioning block 23 and the water outlet positioning block 24 can move without obstacles. Preferably, a position sensor can also be configured to detect whether the cylinder propulsion is in place, and only when it is in place will the control board control each sensor to start working.

[0036] Continue to refer to Figure 2-3, the power interface is arranged at the top of the instant heating module to be tested. Therefore, the test device further includes a vertically liftable pressing mechanism. The power connection interface is located above the product test position 27, and the power connection interface is arranged on the pressing mechanism. The pressing mechanism is used to drive the power connection interface to press down and insert into the power interface of the instant heating module to be tested.

[0037] The pressing mechanism includes a plurality of guide posts 210, a pressing plate 211, a quick clamp 212, a self-resetting spring 213, and a guide post fixing rod 214. The pressing plate 211 is located above the product test position 27. The power connection interface is installed on the pressing plate 211. Two of the guide posts 210 are vertically fixed on the test bench and are distributed on opposite sides of the product test position 27. The guide post fixing rod 214 is horizontally fixed on the vertical operation board. Two connecting ears are perpendicularly extended from both ends of the guide post fixing rod 214 in a direction away from the vertical operation board. The bottoms of the two guide posts 210 are fixed to the test bench, and the tops are respectively fixed to the two ears of the guide post fixing rod 214. The pressing plate 211 is located below the guide post fixing rod 214. The guide posts 210 vertically pass through the pressing plate 211. The pressing plate 211 and the guide posts 210 are matched through linear bearings 215 to move up and down along the guide posts 210. The self-resetting spring 213 is sleeved outside the guide posts 210 and is located between the pressing plate 211 and the test bench, and is used to reset the pressing plate 211.

[0038] The quick clamp 212 is fixed on the pressing plate 211 and is used for a user to apply pressure to press down the pressing plate 211. The quick clamp 212 can adopt an existing structure. For example, it can be realized by a linear slide rail cooperating with a slider and a locking device. For example, the slider is fixed to the pressing plate 211, the linear slide rail extends vertically and is fixed to the pressing plate 211, the linear slide rail and the slider are slidably matched, and the slider and the linear slide rail can be locked by the locking device.

[0039] Further, the device further includes a downward pressure detection sensor 216 and a product detection sensor 217. The product detection sensor 217 is disposed on the test bench and below the product test position 27 for detecting whether the instant heating module to be tested is placed in the product test position 27. The downward pressure detection sensor 216 is located in the downward pressure path of the downward pressure mechanism for detecting whether the instant heating module to be tested is pressed in place. For example, the product detection sensor 217 is a photoelectric sensor. When the product is placed in the product test position 27 and blocks the photoelectric sensor to function, the product detection sensor 217 detects a valid signal at this time. For example, the downward pressure detection sensor 216 is a microswitch located below the pressing plate 211. The microswitch functions when pressed by the pressing plate 211. At this time, the downward pressure detection sensor 216 detects a valid signal. When both the product detection sensor 217 and the downward pressure detection sensor 216 detect valid signals, the control board is triggered to start the test.

[0040] All valves (such as the gas path three-way valve 13, the water-gas three-way valve 16, the water outlet valve 18, the water source supply valve 112) and cylinders in the present invention can be designed to be electrically controlled and controlled by the control board. All sensors can feedback signals to the control board. For example, the downward pressure detection sensor 216 and the product detection sensor 217 are respectively connected to the control board. The control board is used to control the state of the valve to perform an airtightness test or a water passing test when both the downward pressure detection sensor 216 and the product detection sensor 217 are valid.

[0041] The air pressure detection device 15 in this embodiment is specifically a pressure gauge, which can be directly shown to the tester for the tester to manually judge whether the air pressure meets the standard, thereby determining the airtightness detection result, or it can be judged by the control board. Of course, the air pressure detection device 15 can also be a pressure sensor, which detects the air pressure and gives it to the control board, and then drives the display screen to display the air pressure.

[0042] The test process of this embodiment is as follows:

[0043] 1) Manually place the product on the product test position 27, connect the communication interface of the product to the corresponding communication interface of the control board through a communication connection line, and the product detection sensor 217 can detect the product; press the pressing plate 211 downward through the quick clamp 212. Under the guidance of the guide post 210 and the linear bearing 215, the power positive test pin 29 and the power negative test pin 28 contact the positive and negative poles of the product and press the product tightly. The downward pressure detection sensor 216 is effective. If the sensor is ineffective, the power supply is not powered on and the water pump 115 does not work; once the test starts, the two cylinders are pushed in place and the sensors are effective. If ineffective, the power supply is not powered on and the water pump does not work.

[0044] 2) Airtightness detection:

[0045] The pneumatic three-way valve 13 opens to the first output port, i.e., to A, and the water-air three-way valve 16 opens to the first input port, i.e., to A. At this time, it leads from A to D. When the flowmeter 110 has an output, the water outlet valve 18 is closed. If the air pressure of the pressure gauge does not reach the set air pressure within 5S (the time can be set), it is directly judged as a failure. If the air pressure reaches the set air pressure, the pneumatic three-way valve 13 then opens to the second output port, i.e., to B1, and waits for 10S (the time can be set). If the value on the pressure gauge does not drop by the set value, it is considered that the air pressure detection passes, and the airtightness detection result is successful; otherwise, the airtightness detection is considered a failure.

[0046] 2) Water passing detection:

[0047] The pneumatic three-way valve 13 is opened to the first output port, i.e., to A, and the water-air three-way valve 16 is opened to the second input port, i.e., to B. Therefore, due to different gas paths, it leads from B to D at this time. The water outlet valve 18 is opened, the water pump is powered on. When the flowmeter 110 has an output and reaches the required value, the power supply supplies power to the product through the test pins 28 and 29. After 10S, the temperature difference between the first temperature sensor 17 and the second temperature sensor 19 is read. If the requirement is met (for example, greater than the set temperature difference), the detection passes; otherwise, the detection fails.

[0048] When the above two tests both pass, the success indicator light is lit; otherwise, the failure indicator light is lit.

[0049] 3) Blowing

[0050] The power supply is cut off. Wait for the temperature difference between the first temperature sensor 17 and the second temperature sensor 19 to reach the specified value (lower the temperature of the product). The water pump is powered off. The pneumatic three-way valve 13 opens to the second output port, i.e., to B1, and the water-air three-way valve 16 leads from B to D. The water outlet valve 18 is opened, and the compressed gas blows the water into the relay water tank 113 through the product and the pipeline.

[0051] The beneficial effects of this embodiment are as follows: It takes both water and gas into account, can perform airtightness detection and water passing test; after the water passing test is completed, the gas path can be switched to blow the residual water of the product under test into the relay water tank 113; the relay water tank 113 is used for water supply, and the water after the water passing test will return to the relay water tank 113 for recycling.

[0052] It should be noted that when an element is referred to as "fixed to" another element, it can be directly on the other element or there may also be an intermediate element. When an element is considered to be "connected" to another element, it can be directly connected to the other element or there may be an intermediate element at the same time. The terms "vertical", "horizontal" and similar expressions used in this article are only for the purpose of illustration.

[0053] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this utility model belongs. The terms used in the description of this utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit this utility model.

[0054] The ordinal terms such as "first", "second", etc. used in this specification can be used to describe various components, but these components are not limited by these terms. The purpose of using these terms is only to distinguish one component from other components. For example, without departing from the scope of the claims of the present invention, the first component can be named the second component, and similarly, the second component can also be named the first component.

[0055] The embodiments of this utility model have been described above in conjunction with the accompanying drawings, but this utility model is not limited to the above specific embodiments. The above specific embodiments are merely illustrative and not restrictive. Under the inspiration of this utility model, those of ordinary skill in the art can also make many forms without departing from the spirit and scope protected by the claims of this utility model, and these all fall within the protection scope of this utility model.

Claims

1. A testing device for an instant heating module, characterized in that: The invention comprises an air circuit three-way valve (13), an air pressure detection device (15), a water-gas three-way valve (16), a first temperature sensor (17), a second temperature sensor (19), a flow meter (110), and a water outlet valve (18); the input port of the air circuit three-way valve (13) is connected to an air source (11); the first output port of the air circuit three-way valve (13) is connected to a first input port of the water-gas three-way valve (16), and the air pressure detection device (15) is arranged in the communication path; the second output port of the air circuit three-way valve (13) and the water source (111) are merged to the second input port of the water-gas three-way valve (16); the output port of the water-gas three-way valve (16) is connected to a water inlet (31) of a tested instant heating module, and the first temperature sensor (17) is arranged in the communication path; the water outlet valve (18), the second temperature sensor (19), and the flow meter (110) are connected in series to a water outlet (32) of the tested instant heating module.

2. The instant heating module testing device according to claim 1, characterized in that: It also comprises a precision pressure regulating valve (14), which is arranged in the communication path between the first output port of the gas circuit three-way valve (13) and the first input port of the water-gas three-way valve (16).

3. The instant heating module testing device according to claim 1, characterized in that: It also comprises a pneumatic triplet (12), wherein the pneumatic triplet (12) is arranged in the communication path between the gas source (11) and the input port of the gas circuit three-way valve (13).

4. The instant heating module testing device according to claim 1, characterized in that: It also includes a relay water tank (113) arranged in the communication path between the water source (111) and the second input port of the water-gas three-way valve (16); The water source (111) is connected to a first water inlet of the relay water tank (113); the second water inlet of the relay water tank (113) is connected to a water outlet (32) of the instant heating module to be tested; the water outlet valve (18), the second temperature sensor (19), and the flow meter (110) are arranged in a communication path between the water outlet (32) of the instant heating module to be tested and the second water inlet of the relay water tank (113); the water outlet of the relay water tank (113) is connected to a second input port of the water-gas three-way valve (16).

5. The instant heating module testing device according to claim 4, characterized in that: It also includes a water supply valve (112), a filter (114), and a water pump (115); The water source supply valve (112) is arranged in the communication path between the water source (111) and the first water inlet of the relay water tank (113), and the filter (114) and the water pump (115) are arranged in the communication path between the water outlet of the relay water tank (113) and the second input port of the water-gas three-way valve (16).

6. The instant heating module testing device according to claim 4, characterized in that: That is, a water outlet and a water inlet are arranged on two sides of the heating module, and the testing device further comprises a water outlet interface (22) and a water inlet interface (21). The output port of the water-gas three-way valve (16) is connected to the water inlet interface (21); the first temperature sensor (17) is arranged between the water inlet interface (21) and the output port of the water-gas three-way valve (16); the water inlet interface (21) is connected to the water inlet (31) of the instant heating module to be tested; the water outlet interface (22) is connected to the second water inlet of the relay water tank (113); the water outlet valve (18), the second temperature sensor (19) and the flow meter (110) are arranged between the water outlet interface (22) and the second water inlet of the relay water tank (113); the water outlet interface (22) is connected to the water outlet (32) of the instant heating module to be tested.

7. The instant heating module testing device according to claim 6, characterized in that: A power interface is provided on the top of the instant heating module; The testing device further comprises a testing table, a power docking interface connected to a power source and used to dock with a power interface of a tested instant heating module, a product testing position (27) arranged on the testing table for placing the tested instant heating module, and a vertically movable downward pressing mechanism; the power docking interface is located above the product testing position (27), and the power docking interface is arranged on the downward pressing mechanism, and the downward pressing mechanism is used to drive the power docking interface to be pressed downward and inserted into the power interface of the tested instant heating module.

8. The instant heating module testing device according to claim 7, characterized in that: The testing device further comprises a water outlet propulsion mechanism (26) and a water inlet propulsion mechanism (25) distributed on both sides of the product testing position (27); the water outlet propulsion mechanism (26) and the water inlet propulsion mechanism (25) are both capable of translating in a horizontal plane; the water outlet docking interface (22) is mounted on the water outlet propulsion mechanism (26) and can push the water outlet docking interface (22) to dock with the water outlet (32) of the instant heating module to be tested; the water inlet propulsion mechanism (25) is mounted on the water inlet docking interface (21) and can push the water inlet docking interface (21) to dock with the water inlet (31) of the instant heating module to be tested.

9. The instant heating module testing device according to claim 7, characterized in that: The pressing mechanism comprises a plurality of guide columns (210), a pressure plate (211), a quick clamp (212), and a self-resetting spring (213); the pressure plate (211) is located above the product test position (27); the power supply docking port is installed on the pressure plate (211); the plurality of guide columns (210) are vertically fixed on the test bench and distributed around the product test position (27); the guide columns (210) vertically pass through the pressure plate (211); the pressure plate (211) and the guide columns (210) are matched with each other through linear bearings so as to move up and down along the guide columns (210); the quick clamp (212) is fixed on the pressure plate (211) and is used for a user to apply pressure to press down the pressure plate (211); the self-resetting spring (213) is sleeved outside the guide column (210) and is located between the pressure plate (211) and the test bench, and is used to reset the pressure plate (211).

10. The instant heating module testing device according to claim 7, characterized in that: It also includes a downward pressure detection sensor (216) and a product detection sensor (217); the product detection sensor (217) is arranged on the test bench and located below the product test position (27) and is used to detect whether the instant heating module to be tested is placed in the product test position (27); the downward pressure detection sensor (216) is located in the downward pressure path of the downward pressure mechanism and is used to detect whether the instant heating module to be tested is pressed into place.

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